<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>关于表格的常用属性</title>
    <style type="text/css">
        table{
            border-collapse:collapse;
            width: 60%;

        }
       table,tr,td{
            border: 1px solid black;
        }

    </style>
</head>
<body>
<table align="center">
    <tr>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
    </tr>
    <tr>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
    </tr>
    <tr>
        <td>01</td>
        <td>02</td>
        <td>03</td>
        <td>04</td>
    </tr>
</table>




</body>
</html>